Google Professional Cloud Developer Question 207
Select 2Google Cloud PlatformYou are developing a serverless application that uses Google Cloud Pub/Sub and Firestore. To speed up your development and testing process, you decide to use local emulators for these services. Which of the following steps are required to correctly set up and use the Google Cloud emulators for Pub/Sub and Firestore during local development?
- A
Start the Pub/Sub emulator and Firestore emulator locally using the gcloud CLI.
- B
Set the appropriate environment variables to point your application to the local emulator endpoints.
- C
Deploy the Cloud Pub/Sub and Firestore configuration to your Google Cloud project before running the local emulators.
- D
Use the Google Cloud Console to simulate Pub/Sub messages and Firestore updates during local development.
- E
Ensure your application uses the same service account credentials for both local and production environments.
Show answer and explanation
Correct answers: A, B
Explanation
To emulate Google Cloud services like Pub/Sub and Firestore during local development, you must start the appropriate emulators using the gcloud CLI and configure your application to connect to the emulator endpoints by setting relevant environment variables. This approach allows you to test your application locally without interacting with production resources, speeding up development and reducing the risk of unintended changes to your cloud project.
- A. Correct.
Correct: Starting the Pub/Sub and Firestore emulators locally using the gcloud CLI is required to emulate these services during local development.
- B. Correct.
Correct: Setting the appropriate environment variables (e.g., FIRESTORE_EMULATOR_HOST and PUBSUB_EMULATOR_HOST) ensures your application communicates with the local emulators instead of the production services.
- C. Incorrect.
Incorrect: Deploying the configuration to your Google Cloud project is not necessary for local emulator usage. Emulators are designed to work independently of your cloud project.
- D. Incorrect.
Incorrect: The Google Cloud Console is not used to simulate messages or updates when working with local emulators. Instead, testing and simulation are done through your local tools and scripts.
- E. Incorrect.
Incorrect: Local development with emulators does not require using the same service account credentials as production. Emulators can work without authentication or with test credentials.